1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef __ASM_SH_PGTABLE_64_H 13 #define __ASM_SH_PGTABLE_64_H 14 15 #include <linux/threads.h> 16 #include <asm/processor.h> 17 #include <asm/page.h> 18 19 #define pte_ERROR(e) printk("%s:%d: bad pte %016Lx.\n", __FILE__, __LINE__, pte_val(e)) 20 #define pgd_ERROR(e) printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) 21 22 #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) 23 24 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) 25 #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) 26 #define __pgd_offset(address) pgd_index(address) 27 #define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address)) 28 #define pgd_offset_k(address) pgd_offset(&init_mm, address) 29 #define _PMD_EMPTY 0x0 30 #define pmd_present(pmd_entry) (pmd_val(pmd_entry) & _PAGE_PRESENT) 31 #define pmd_clear(pmd_entry_p) (set_pmd((pmd_entry_p), __pmd(_PMD_EMPTY))) 32 #define pmd_none(pmd_entry) (pmd_val((pmd_entry)) == _PMD_EMPTY) 33 #define pmd_bad(pmd_entry) ((pmd_val(pmd_entry) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) 34 #define pmd_page_vaddr(pmd_entry) ((unsigned long) __va(pmd_val(pmd_entry) & PAGE_MASK)) 35 #define pmd_page(pmd) (virt_to_page(pmd_val(pmd))) 36 #define pte_index(address) ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) 37 #define pte_offset_kernel(dir, addr) ((pte_t *) ((pmd_val(*(dir))) & PAGE_MASK) + pte_index((addr))) 38 #define pte_offset_map(dir,addr) pte_offset_kernel(dir, addr) 39 #define pte_offset_map_nested(dir,addr) pte_offset_kernel(dir, addr) 40 #define pte_unmap(pte) do { } while (0) 41 #define pte_unmap_nested(pte) do { } while (0) 42 #ifndef __ASSEMBLY__ 43 #define IOBASE_VADDR 0xff000000 44 #define IOBASE_END 0xffffffff 45 #define _PAGE_WT 0x001 46 #define _PAGE_DEVICE 0x001 47 #define _PAGE_CACHABLE 0x002 48 #define _PAGE_PRESENT 0x004 49 #define _PAGE_FILE 0x004 50 #define _PAGE_SIZE0 0x008 51 #define _PAGE_SIZE1 0x010 52 #define _PAGE_SHARED 0x020 53 #define _PAGE_READ 0x040 54 #define _PAGE_EXECUTE 0x080 55 #define _PAGE_WRITE 0x100 56 #define _PAGE_USER 0x200 57 #define _PAGE_DIRTY 0x400 58 #define _PAGE_ACCESSED 0x800 59 #define _PAGE_FLAGS_HARDWARE_MASK 0xfffffffffffff3dbLL 60 #ifndef _PAGE_SZHUGE 61 #define _PAGE_SZHUGE (0) 62 #endif 63 #define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | _PAGE_EXECUTE | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_SHARED) 64 #define _PAGE_TABLE (_KERNPG_TABLE | _PAGE_USER) 65 #define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) 66 #define _PAGE_COMMON (_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED) 67 #define PAGE_NONE __pgprot(_PAGE_CACHABLE | _PAGE_ACCESSED) 68 #define PAGE_SHARED __pgprot(_PAGE_COMMON | _PAGE_READ | _PAGE_WRITE | _PAGE_SHARED) 69 #define PAGE_EXECREAD __pgprot(_PAGE_COMMON | _PAGE_READ | _PAGE_EXECUTE) 70 #define PAGE_COPY PAGE_EXECREAD 71 #define PAGE_READONLY __pgprot(_PAGE_COMMON | _PAGE_READ) 72 #define PAGE_WRITEONLY __pgprot(_PAGE_COMMON | _PAGE_WRITE) 73 #define PAGE_RWX __pgprot(_PAGE_COMMON | _PAGE_READ | _PAGE_WRITE | _PAGE_EXECUTE) 74 #define PAGE_KERNEL __pgprot(_KERNPG_TABLE) 75 #define PAGE_KERNEL_NOCACHE __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | _PAGE_EXECUTE | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_SHARED) 76 #define pgprot_noncached(x) __pgprot(((x).pgprot & ~(_PAGE_CACHABLE)) | _PAGE_DEVICE) 77 #define pgprot_writecombine(prot) __pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE) 78 79 #define __handle_bad_pmd(x) __handle_bad_pmd_kernel(x) 80 81 #define _PTE_EMPTY 0x0 82 #define pte_present(x) (pte_val(x) & _PAGE_PRESENT) 83 #define pte_clear(mm,addr,xp) (set_pte_at(mm, addr, xp, __pte(_PTE_EMPTY))) 84 #define pte_none(x) (pte_val(x) == _PTE_EMPTY) 85 86 #define pte_pagenr(x) (((unsigned long) (pte_val(x)) - __MEMORY_START) >> PAGE_SHIFT) 87 88 #define pte_page(x) (mem_map + pte_pagenr(x)) 89 90 #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) 91 92 #define mk_pte(page,pgprot) ({ pte_t __pte; set_pte(&__pte, __pte((((page)-mem_map) << PAGE_SHIFT) | __MEMORY_START | pgprot_val((pgprot)))); __pte; }) 93 #define mk_pte_phys(physpage, pgprot) ({ pte_t __pte; set_pte(&__pte, __pte(physpage | pgprot_val(pgprot))); __pte; }) 94 #define __swp_type(x) (((x).val & 3) + (((x).val >> 1) & 0x3c)) 95 #define __swp_offset(x) ((x).val >> 8) 96 #define __swp_entry(type, offset) ((swp_entry_t) { ((offset << 8) + ((type & 0x3c) << 1) + (type & 3)) }) 97 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) 98 #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) 99 #define PTE_FILE_MAX_BITS 29 100 #define pte_to_pgoff(pte) (pte_val(pte)) 101 #define pgoff_to_pte(off) ((pte_t) { (off) | _PAGE_FILE }) 102 #endif 103 #define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) 104 #define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) 105 #endif 106
